Trade card: John Patrick, in Ship-Court in the Old-Baily London. Maker of barometers and thermometers. A descriptive advertisement giving rules for forecasting the weather. Illustrated by a print from a copperplate impressed on the top left-hand quarter of the paper. Letter-press on both sides of the sheet. The two versions differ in the setting of the letter-press & in minor details of the wording. (Calv. 294)